Yellow, white, blue cable are connected to lamps, red cable is connected with AC power, black one is connected to null line. Left side white cable is connected to antenna.

Controller function: A for controlling blue group lamp On-Off, B for white group, C for yellow group, D for all lamp on-off.

3 way 3 section digital subsection switch, refers to control 3 sets of lights (A, B groups for instance), first to switch lights of A group on, second is to switch lights of B group on and the third is to switch lights of both A, B groups on. This digital subsection switch offers a smart way to control your lamps.